Calculate Your Factory's Solar ROI
This calculator uses average Faisalabad solar irradiation data (5.3 peak sun hours/day) and current industrial electricity tariff rates. Results are indicative — contact us for a site-specific analysis.
How We Calculate Industrial Solar ROI
Our ROI model uses the following assumptions for Faisalabad industrial sites:
- Peak sun hours: 5.3 hours/day average (Faisalabad, Punjab)
- System efficiency losses: 20% (wiring, inverter, temperature, dust)
- Annual energy output per kW: ~1,540 kWh/kW/year
- Tariff escalation: Not included (actual savings will increase as tariffs rise)
- Panel degradation: 0.5%/year after Year 1 (LONGi warranty standard)
- Net metering benefit: Assumed 75% self-consumption, 25% export
Important: This calculator gives ballpark estimates only. Industrial solar ROI depends heavily on your specific load profile, rooftop area, orientation, shading, and WAPDA tariff category. For a precise 10-year financial model, contact us for a free feasibility study.
Factors That Improve Industrial Solar ROI
Higher Electricity Tariff
The more you pay per unit to WAPDA, the faster solar pays back. Industrial B3/B4 tariffs above Rs. 55/unit make solar extremely attractive.
Daytime Operations
Factories running primarily during daylight (8am–6pm) achieve maximum solar self-consumption, improving ROI significantly.
Large Rooftop Area
More rooftop space means a larger system and higher savings. South-facing rooftops with minimal shade achieve optimal yield.
Net Metering Activation
With net metering, surplus energy generated during low-consumption periods is credited to your bill, maximising value from every unit produced.